Home / 21,548,420.72-29,737,448.60-11,759,495.44

Finding the Fourth Proportional to 21,548,420.72, 29,737,448.60 and 11,759,495.44

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Solution

The fourth proportional to 21,548,420.72, 29,737,448.60 and 11,759,495.44 is: 16,228,446.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,548,420.72 : 29,737,448.60 = 11,759,495.44 : x
  2. Step 2: Convert to fraction form
    21,548,420.72/29,737,448.60 = 11,759,495.44/x
  3. Step 3: Cross multiply
    21,548,420.72x = 29,737,448.60 × 11,759,495.44
  4. Step 4: Simplify right side
    21,548,420.72x = 349,697,391,131,551
  5. Step 5: Solve for x
    x = 349,697,391,131,551/21,548,420.72
  6. Step 6: Final answer
    x = 16,228,446.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.